245 lines
13 KiB
JSON
245 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-69418",
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"assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
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"state": "PUBLISHED",
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"assignerShortName": "openssl",
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"dateReserved": "2026-01-06T12:44:09.945Z",
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"datePublished": "2026-01-27T16:01:23.986Z",
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"dateUpdated": "2026-10-15T01:10:25.604Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "OpenSSL",
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"vendor": "OpenSSL",
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"versions": [
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{
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"lessThan": "3.6.1",
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"status": "affected",
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"version": "3.6.0",
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"versionType": "semver"
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},
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{
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"lessThan": "3.5.5",
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"status": "affected",
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"version": "3.5.0",
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"versionType": "semver"
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},
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{
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"lessThan": "3.4.4",
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"status": "affected",
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"version": "3.4.0",
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"versionType": "semver"
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},
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{
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"lessThan": "3.3.6",
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"status": "affected",
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"version": "3.3.0",
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"versionType": "semver"
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},
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{
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"lessThan": "3.0.19",
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"status": "affected",
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"version": "3.0.0",
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"versionType": "semver"
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},
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{
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"lessThan": "1.1.1ze",
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"status": "affected",
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"version": "1.1.1",
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"versionType": "custom"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "reporter",
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"value": "Stanislav Fort (Aisle Research)"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Stanislav Fort (Aisle Research)"
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}
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],
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"datePublic": "2026-01-27T14:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and unauthenticated.<br><br>Impact summary: The trailing 1-15 bytes of a message may be exposed in<br>cleartext on encryption and are not covered by the authentication tag,<br>allowing an attacker to read or tamper with those bytes without detection.<br><br>The low-level OCB encrypt and decrypt routines in the hardware-accelerated<br>stream path process full 16-byte blocks but do not advance the input/output<br>pointers. The subsequent tail-handling code then operates on the original<br>base pointers, effectively reprocessing the beginning of the buffer while<br>leaving the actual trailing bytes unprocessed. The authentication checksum<br>also excludes the true tail bytes.<br><br>However, typical OpenSSL consumers using EVP are not affected because the<br>higher-level EVP and provider OCB implementations split inputs so that full<br>blocks and trailing partial blocks are processed in separate calls, avoiding<br>the problematic code path. Additionally, TLS does not use OCB ciphersuites.<br>The vulnerability only affects applications that call the low-level<br>CRYPTO_ocb128_encrypt() or CRYPTO_ocb128_decrypt() functions directly with<br>non-block-aligned lengths in a single call on hardware-accelerated builds.<br>For these reasons the issue was assessed as Low severity.<br><br>The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected<br>by this issue, as OCB mode is not a FIPS-approved algorithm.<br><br>OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.<br><br>OpenSSL 1.0.2 is not affected by this issue."
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}
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],
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"value": "Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and unauthenticated.<br><br>Impact summary: The trailing 1-15 bytes of a message may be exposed in<br>cleartext on encryption and are not covered by the authentication tag,<br>allowing an attacker to read or tamper with those bytes without detection.<br><br>The low-level OCB encrypt and decrypt routines in the hardware-accelerated<br>stream path process full 16-byte blocks but do not advance the input/output<br>pointers. The subsequent tail-handling code then operates on the original<br>base pointers, effectively reprocessing the beginning of the buffer while<br>leaving the actual trailing bytes unprocessed. The authentication checksum<br>also excludes the true tail bytes.<br><br>However, typical OpenSSL consumers using EVP are not affected because the<br>higher-level EVP and provider OCB implementations split inputs so that full<br>blocks and trailing partial blocks are processed in separate calls, avoiding<br>the problematic code path. Additionally, TLS does not use OCB ciphersuites.<br>The vulnerability only affects applications that call the low-level<br>CRYPTO_ocb128_encrypt() or CRYPTO_ocb128_decrypt() functions directly with<br>non-block-aligned lengths in a single call on hardware-accelerated builds.<br>For these reasons the issue was assessed as Low severity.<br><br>The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected<br>by this issue, as OCB mode is not a FIPS-approved algorithm.<br><br>OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.<br><br>OpenSSL 1.0.2 is not affected by this issue."
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}
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],
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"metrics": [
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{
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"format": "other",
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"other": {
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"content": {
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"text": "Low"
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},
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"type": "https://openssl-library.org/policies/general/security-policy/"
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-325",
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"description": "CWE-325 Missing Cryptographic Step",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
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"shortName": "openssl",
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"dateUpdated": "2026-01-27T16:01:23.986Z"
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},
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"references": [
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{
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"name": "OpenSSL Advisory",
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"tags": [
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"vendor-advisory"
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],
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"url": "https://openssl-library.org/news/secadv/20260127.txt"
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},
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{
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"name": "3.6.1 git commit",
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"tags": [
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"patch"
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],
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"url": "https://github.com/openssl/openssl/commit/ed40856d7d4ba6cb42779b6770666a65f19cb977"
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},
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{
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"name": "3.5.5 git commit",
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"tags": [
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"patch"
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],
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"url": "https://github.com/openssl/openssl/commit/4016975d4469cd6b94927c607f7c511385f928d8"
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},
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{
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"name": "3.4.4 git commit",
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"tags": [
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"patch"
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],
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"url": "https://github.com/openssl/openssl/commit/372fc5c77529695b05b4f5b5187691a57ef5dffc"
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},
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{
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"name": "3.3.6 git commit",
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"tags": [
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"patch"
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],
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"url": "https://github.com/openssl/openssl/commit/a7589230356d908c0eca4b969ec4f62106f4f5ae"
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},
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{
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"name": "3.0.19 git commit",
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"tags": [
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"patch"
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],
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"url": "https://github.com/openssl/openssl/commit/52d23c86a54adab5ee9f80e48b242b52c4cc2347"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Unauthenticated/unencrypted trailing bytes with low-level OCB function calls",
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"x_generator": {
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"engine": "Vulnogram 0.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 4,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
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"integrityImpact": "LOW",
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"userInteraction": "NONE",
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"attackComplexity": "HIGH",
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"availabilityImpact": "NONE",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "LOW"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-01-29T15:06:43.617751Z",
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"id": "CVE-2025-69418",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-01-29T15:07:14.052Z"
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}
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},
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:10:25.604Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
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}
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]
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}
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]
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}
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} |